Working Theory

If you want something better than your standard slow flowing stock equipment exhaust muffler, then Magnum peformance exhaust mufflers are just what you need. They are made from full stainless steel raw-materials for longer life and a unique appearance. Wide open performance is the product of custom engineering these Magnum mufflers deliver to your BMW 525i's exhaust system. The result is optimally low gas stranglehold combined with perceptible increased performance level and incredible acceleration. A Magnum exhaust tone is the real tone of muscle and performance level, producing more pony than factory equipment equipment and competitive exhaust system parts. Proven to supply the most in HP and mid-range torque with straight through wide open performance structure. Select a preferred noise level form 3 categories - 50 up to 90 dB - and enjoy the silence or the orotund: it's all personal preference. Match the utmost power with unbeatable bass tone. Magnum free-flow pipes are designed with

vehicle specific gas restriction

vehicle specific dimensions

vehicle specific inlet/outlet position

custom sound level per you choice

however

they have universal installation made by MIG or TIG welding. Magnum free flow exhausts are not slip-on.

Universal installation method is an inexpensive way to increase your vehicle's engine performance. Should you have an installation related question please contact your mechanic, local exhaust shop or email our Tech Support prior to the purchase. You might need some additional parts as exhaust bushing, hangers, stiffeners, so feel free to check out our exhaust accessories .

Choose your exhaust from 3 sound level categories

All Magnum high flow pipes will make Buyers feel the mellow gas flow without affecting and reducing vehicle pony. This is considered as the best way to increase the vigor and passing extra performance by up to 7% as well as to improve MPG from 2 to 3MPG. Tips come with internal resonator for the smoothest and most efficient exhaust gas flow.

Shipment

Each Magnum Performance exhaust is made in Europe so please allow your exhaust 20 up to 28 days to arrive.

why to buy this BMW 525i muffler?

Racing-inspired performance

Full performance and sound adjustability

The success of these performance exhaust mufflerss is attributable to the fact, Magnum performance exhaust pipes feature optional exhaust note level. We customize the exhaust sound from silent humming to roaring cannon according to your choice.

Unspeakably amazing sound

The special interwoven heat- and flame resistant exhaust fill that surrounds perforated tubes provides sufficient restriction against exhaust gas and warrants the ultimate pony. This exhaust acoustical packing is made of the high quality exhaust materials and will absorb any metallic noise produced by the pistons and rings in the combustion chamber. The end result is a clear, robust and unparalleled exhaust sound. The sound these mufflers produce is just incredible.

Unbeatable look

The hand-polished gleaming tips will give you the look and feel of having the HP you and your BMW 525i deserves. The humming, mild or brutal bass sound will impress everyone around you.

10-year extended labor warranty

We warrant that all of our exhausts are free of defects. The Magnum BMW 525i high flow exhaust is warranted against both blowouts and defects. The Magnum extended 10-year defects-warranty against workmanship and mechanical failure will warrant that your investment is still performing as long as you own your BMW 525i.

Each Magnum High Flow muffler is designed to provide years of hassle-free performance besides humming or aggressive sound that these mufflers emit will ensure you turn heads while cruising on the roads. With our 17 years of producing innovative developments of exhaust systems that truly bring significant power gain and revolutionary exhaust system tones, Magnum has become the benchmark for performance muffler parts in Europe. We are committed to complying with car enthusiasts' requirements in regarding to engine horsepower, exhaust sound quality, appearance, service life and quality.

We make the power and sound you've been fishing for. Boost your horsepower and enjoy the symphony of the exhaust performance by the pistons and rings through a powerful musical instrument; the exhaust tubing. Our sounds are incomparable. Magnum exhausts features with deep, rich, humming base sound.

Packing List

1 x Exhaust Muffler

1 x Installation Instructions

A factory exhaust system is used to guide reaction exhaust gases away from a controlled combustion inside an engine or stove. The entire system conveys burnt gases from the engine's combustion chamber to the free air and includes several exhaust elements. Depending on the overall system design, the exhaust gas may flow through,

Cylinder head

Exhaust manifold / header

Exhaust tubing

Turbocharger (if any)

Catalytic converter (pre-, post- or both)

Middle muffler

Exhaust resonator

End muffler silencer

Tailpipe

One of the most effective modifications automotive enthusiasts make to their vehicle is the exhaust. It's one of those instant gratification things; step on the gas and hear the exhaust notes come to life. It's proven freeing up a factory exhaust system increases power significantly. Mufflers, resonators, catalytic converters and Catback systems, all contribute to sound, power and restriction. Before they design an exhaust component, the engineers have to obey countless rules pertaining to,

noise level

emission

cost efficiency

engine durability

fuel efficiency

performance

warranty period

It is obvious, performance is not the primary goal of vehicle manufactures when it comes to design an exhaust system. What could be the most important, from the intake through the combustion chambers, to the exhaust, air is not allowed to flow too freely because of restrictions the manufacturers have to compaly with, in the form of the catalytic converters, the resonators, silencers, etc. But a decent tuning system has a deep throaty tone, while yielding increases in horsepower. Tuning exhausts are such systems that can unleash some horsepower and efficiency, while still being safe in respect of engine longevity.

Reasons to get rush and bust on BrutaliTune

Magnum Silencers are proven to deliver the most in power with tunable straight through Triple Perf Tube Design. this exhaust gives you more rideable HP, improves torque, acceleration and smoothes out throttle response.

Premium quality raw materials.

Exhaust body, tips and internal components are crafted of the highest grade SS304 stainless steel inside and out. They resist rain, water, salt water, acids and high temperature in all types of terrain. Your Magnum exhaust is a durable and reliable mechanical muffler sustaining even the harshest conditions. The Chrome Plated end cap is forged out of high quality brass. Tips feature built-in resonator.

Backfires in general

Backfire, also called as lean misfire on deceleration is primarily attributed to an improperly adjusted or tuned engine, ignition or an exhaust / exhaust system with non-optimal gas restriction. If you are struggling with backfires, check your spark plugs and the ignition advance to verify the tune-up is correct. The plugs should be a light tan (deer brown) in color if worked properly. If all OK you should be suspicious the problem is at the exhaust. In many cases, misfire is an indication that the exhaust is too free flowing. Pipes might be too large in diameter or muffler's volume is higher than required for the engine configuration you have. Magnum Exhaust installed on factory vehicle does not produce backfires. Misfire is not uncommon on racing setups though, or on vehicles run on extremely rich mixture at lower air / fuel ratio than 13:00.

About magnum exhausts sound

Depending on your choice of sound, we have 3 series of exhaust mufflers and system kits designed for your vehicle that produce that distinct Magnum sound in mild, moderate bass, and aggressive roaring tones.

Description of Magnum Performance Exhaust Sounds for gasoline engines

Sound Level#1 - Smooth-Ter

Sound level#1 exhausts deliver a mild tone being inaudible from vehicle's compartment. They are is a lil louder than stock exhaust without noticeable difference regarding the driving comfort so actually this exhaust is very quiet either your windows are up or down. These mufflers perfect for customers looking for performance boost but are concerned about installing an exhaust that is too aggressive for daily street driving. The Sound Level#1 Magnum exhausts commonly do not draw people's attention distantly, but increase the performance-look of the vehicle.

Notes

The sound level is subject to increase if adding this exhaust to non-factory aftermarket system or the current system is incomplete e.g. system is decatted.

Turbo and supercharged engines emit lower din, please count on moderated sound. This sound is not attainable on exhaust systems.

Quality exhaust sound assumes flawless vehicle specific components.

We put every wheel into motion to describe sound levels accurately but no sound-warranty/ money back warranty is expressed or implied.

Sound Level#2 - Bass-Ter

Our Bass-Ter exhausts, deliver the same fine attributes as #1 sound mufflers, but they feature a deep tone and great overall acceleration sound. If you want a truly dyno-proven exhaust that delivers a uniquely different tone, our Bass-Ter exhausts are the perfect fit. These mufflers produce an unsurpassed clear bass tone referring to a full-powered explosive engine. At idle the fine deep sound is not brutal, but when you romp on the throttle hard, it has a really amazing rumble. We think our #2 sounds similar to high-revving V8's in supercars. When you are driving normally you can hear a wonderful V8 bass as you move through the revs, but once you start cruising at a constant speed, it again becomes moderately quiet. On the highway, you don't get an annoying sound that gives you a headache. If your windows are up it is loud but bearable. When you go full throttle the sound is jaw-dropping as you hear a symphony of your engine now effortlessly flying through the revs.

Notes

The sound level is subject to increase if adding a Magnum Exhaust component to non-factory aftermarket system or the current system is incomplete e.g. catalytic converter is missing.

A Magnum exhaust system tone is deeper than a bass of a Magnum back muffler.

Sound Level#3 - Monster

These back boxes are recommended for streetracers, drugracers or whoever likes the pure exhaust noise combined with a drum concert's bass effects. You Monster Exhaust works in harmonious accord with the pistons. Our Monster Exhaust and Catbacks feature tuning-bred components that ensure minimal restriction and only slight reduction on sound over open exhaust tubing on decatted vehicles. With street legal vehicles Monster exhausts can be compatible with regular street driving. If you desire the ultimate in aggressive sounding performance and expect the max horsepower boost, a Monster series exhaust is the solution.

Notes

Monster Exhaust is not attainable on turbo or supercharged vehicles with catalytic converters.

A Magnum exhaust system tone is deeper than a bass of a Magnum back muffler.

We put every wheel into motion to describe sound levels accurately but no sound-warranty / money back warranty is expressed or implied.

really nice quality

The mufflers were really nice quality. It's not to loud and gives my Terracan a very nice rumble when you start it and when you romp on the throttle. Can't tell in city I have exhaust work if you are sitting in it unless windows pulled down. We will see if it becomes any louder on highways. At this point i am very satisfied.

horsepower gain is noticed

I'd love this back box if i wouldnt have been stumped 'cos they did not fit my car and install was very laborious, tried to recoup my dough paid to the exhaust fitter, no positive response received from Magnum CS. Pro's, horsepower gain is noticed, nice exhaust note and better fuel economy

much smaller than factory

this magna exhust is a piece of crap, much smaller than factory chrysler muffler, heavy and has no flange to install it bolt-on, i ultimately returned the part and return is easy but i was charged 15% restocking fee that is outrageous, will never buy again.

1 of 1 people found this review helpful.

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great muffler with the perfect sound

no charge for shipping despite its not lightweight. great muffler with the perfect sound. not too loud, not too quiet, just the sound i was looking for. performance boost is notable. installation was simple, but the clamps were not supplied, that was very much below my expectations. visit an auto parts store & get some real clamps before installing system.

11 of 14 people found this review helpful.

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fits excellent

took 3 weeks 2 exhaust reached my door, muffler looks nice but body is very heavy not easy to install, my fitter put it in the bumper loop and it fits excellent delivering a high-performance look, i wil buy again a high flow cat if they ship it expeditiously

exhaust is absolutely outstanding

Magnum exhaust is absolutely outstanding! My 2013 Skyline is a beautiful car that sounded incredibly wimpy, this exhaust changed that. Now the sound matches the look of the car and totally increased performance. Heaps of power. I just ordered 2 more mufflers for my other 2 vehicles. Highly recommended.

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looks nice and sounds amazing

ordered during business hours on monday and still got it in three weeks, oh gosh and my car stalled with no backmuffler for long, the exhaust looks nice and sounds amazing but i am exasperated due to the excessive timeframe, another vexing problem, exhaust kit didn't include hangers.

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like the sound this muffler produced

I like the sound this muffler produced and it was relatively easy to install. Also feel noticeable extra pep in mid range and agressive acceleration on highway even at high end. Magnum guys shipped my exhaust free that is courtesy considering its not lightweight. Awesome service.

Magnum performance exhaust mufflers deliver your engine more bite, notable extra horsepower and awesome torque increase. If you want something better than your standard slow flowing OEM muffler, then Magnum performance exhaust mufflers are just what you need. Unleash your engine's beast with a tuning exhaust. Whether you're looking for more hauling torque or you simply want to blow the competition away, Magnum exhaust is your smart choice. All Magnum exhausts are crafted of stainless steel materials for longer life and a unique appearance.

Excellent functionality and special options have kept the BMW 525i at the forefront of the Car Truck SUV market with very good reason. Routine technical facelifts and constantly updated technology committed by BMW continue to deliver for 525i customers, but it's on you to make sure your own personal upgrades are up to snuff. Insist on custom-fitting parts by checking out our performance chip product line to your Car Truck SUV. The BMW has been the Car Truck SUV maker's best-selling line, by leaps and bounds. The 525i, in particular, blends form and function with utmost utility in ways most other manufacturers cannot hope to match. You know why you bought such a glorious Car Truck SUV, so don't outfit your 525i with just any additions. On magnumtuning.com, you'll find a list of custom-fit parts and accessories. Take a look, and pick something that looks good, confident that your BMW 525i will be catered to directly. The way it deserves to be. Need better mid range horsepower and fuel consumption? Not quite sure which performance chip to install on your BMW. Feel free to ask. Our engineers are involved in circuit racing and performance. Backed by our remarkable experience in engine upgrade development, we bear full responsibility for authentic advisory service.

BMW 525i

BMW Performance Exhaust Muffler will earn you a reputation among other BMW enthusiasts. Magnum 525i High Flow Muffler will pep up your motor and give you the ability to control your 525i engine better at all times. As a producer for over 21 years we offer the most affordable deals on the market. Magnum Performance Silencer is available with great discount. If you want easy engine horsepower, more throttle response and an effortless increase in torque then you should seriously consider our 525i Performance Exhaust Muffler. The best Performance Silencer on the market! High Flow Muffler features awesome claims guaranteed by Magnum, the manufacturer. 525i High Flow Muffler easily plugs into the factory exhaust of your Car Truck. This authentic Magnum Performance Exhaust Muffler makes more torque by changing the every-day, conservative settings of exhaust gas flow on your BMW powertrain, to reflect the maximum potential of the engine. Federico posted this input, Works well, great product and fast shipping and super price thanks for your superior overall service, I am happy with my 525i Performance Silencer! Good seller, 5-star rate. Thank you!!!